111100211221230 has 384 divisors, whose sum is σ = 371815547830272. Its totient is φ = 22337428320000.

The previous prime is 111100211221189. The next prime is 111100211221231. The reversal of 111100211221230 is 32122112001111.

It is a happy number.

111100211221230 is a `hidden beast` number, since 1 + 1 + 1 + 1 + 0 + 0 + 211 + 221 + 230 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111100211221231) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1437388885 + ... + 1437466175.

It is an arithmetic number, because the mean of its divisors is an integer number (968269655808).

Almost surely, 2^{111100211221230} is an apocalyptic number.

111100211221230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 111100211221230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185907773915136).

111100211221230 is an abundant number, since it is smaller than the sum of its proper divisors (260715336609042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111100211221230 is a wasteful number, since it uses less digits than its factorization.

111100211221230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84044 (or 84041 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 111100211221230 its reverse (32122112001111), we get a palindrome (143222323222341).

The spelling of 111100211221230 in words is "one hundred eleven trillion, one hundred billion, two hundred eleven million, two hundred twenty-one thousand, two hundred thirty".